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- W3044806687 abstract "ABSTRACT AD presents with severe neurodegeneration which leads to cognitive deficits and dementia. Identifying the molecular signals that attenuate neurodegeneration in AD may be exploited as therapeutic targets. This study revealed that transgenic AD mice (PSAPP) exhibit decreased caveolin-1 (Cav-1), a membrane/lipid raft (MLR) scaffolding protein that organizes synaptic signaling components. Subcellularly, Cav-1 and full length (fl)-TrkB were significantly decreased in MLRs. We thus developed an in vivo gene therapy that re-expresses neuronal-targeted Cav-1 using the synapsin promoter ( SynCav1 ). While AD mice showed significant learning and memory deficits at 9 and 11 months, AD mice that received hippocampal SynCav1 (AD- SynCav1 ) maintained normal learning and memory at 9 and 11 months respectively. Furthermore, AD- SynCav1 mice showed preserved hippocampal MLR-localized fl-TrkB, synaptic ultrastructure, dendritic arborization and axonal myelin content, all of which occurred independent of reducing amyloid deposit and astrogliosis. Thus, SynCav1 demonstrates translational potential to treat AD by delaying neurodegeneration. Summary Transgenic PSAPP mice exhibit decreased hippocampal expression of the membrane lipid raft (MLR) scaffolding protein caveolin-1. Synapsin-promoted re-expression of Cav-1 (termed SynCav1 ) mitigated neuropathology and cognitive deficits. SynCav1 gene therapy has the potential to treat AD and other forms of neurodegeneration." @default.
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- W3044806687 date "2020-07-25" @default.
- W3044806687 modified "2023-10-04" @default.
- W3044806687 title "Synapsin-caveolin-1 mitigates cognitive deficits and neurodegeneration in Alzheimer’s disease mice" @default.
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- W3044806687 doi "https://doi.org/10.1101/2020.07.24.220129" @default.
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